Fingers Crossed for 2021 ...

2020 was the worst! COVID kept the museum closed for much of the year and a mains water pipe bursting causing a flood kept us closed for the rest. 
We're hoping to re-open in the next few months ... fingers crossed! Read More >>>

Please Donate Via Just GivingNo visitors, no workshops, no events, no school visits... no income. We know that things are tough for everyone right now, but if you can afford to help us through these tough times please donate what you can.

There's over 36,000 exhibits here! That should keep you occupied for a bit - get searching!

Or come and get involved on our social media channels ...

      Twitch  Facebook          Online Gift Shop      

Thank you.

 Home > LEO Computers > Lyons Electronic Office (LEO) Archive > CMLEO/LS - LEO Comput ... s Society Collection > Photographs > Photographs of LEO I > 61854 View through t ... e LEO I racks (1950)

61854 View through the LEO I racks (1950)

Description of Photograph

Digital copy of a photograph of the view down the central aisle between the racks (towards what would be the location of the Engineering Console) of the LEO I 'calculator room' at Cadby Hall, early in the installation phase.

Caption:  'Computer & Co-Ordinator Racks'

This image appears in the interactive plan for our Virtual LEO I installation, p62.

Research comments: This is an early photograph of LEO I, before the engineers' console is built. Not all the valve racks are full or even built. Note the sheets of paper, presumably plans and diagrams, that  are suspended from the racks; this is a machine very much under construction. Also note the small room to the left of the photograph. This was likely the engineers' room. (LM)

Digital copy made by John Daines, LEO Computers Society, of a photograph in the LEO Computers Collection (formerly part of the National Archive of Historic Computing) at the University of Manchester Library: NAHC/LEO/B1-17

Date: June 1950

Physical Description: 1 digital image (jpeg); black & white

Archives Hub References: CMLEO/LS/PH/1/61854

Related Topics:

Comment on This Photograph

This exhibit has a reference ID of CH61854. Please quote this reference ID in any communication with the Centre for Computing History.

Photograph of 61854  View through the LEO I racks  (1950)

Copyright Unknown

Help support the museum by buying from the museum shop

View all items

Founding Sponsors
redgate Google ARM Real VNC Microsoft Research
Heritage Lottery Funded
Heritage Lottery Fund
Accredited Museum